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- W2119853314 abstract "Introduction: Stroke is the second leading cause of death and the first cause of disability in the world, with more than 85% of the cases having ischemic origin.Objective: To evaluate in an embolism model of stroke the effect of atorvastatin and meloxicam on neurons, astrocytes and microglia. This evaluation was done administering each medication individually and in association.Materials and methods: Wistar rats were subjected to carotid arterial embolism and treatment with meloxicam and atorvastatin at 6, 24, 48 and 72 hours. Using immunohistochemistry, we evaluated the immunoreactivity of COX-2 protein, GFAP and OX-42 in neurons, astrocytes and microglia by densitometric and morphological studies. Data were evaluated by variance analysis and non-parametric multiple comparison.Results: Cerebral ischemia by arterial embolism increased significantly the reactivity of microglia and astrocytes (p<0.001), whereas it was reduced by atorvastatin, meloxicam and their association. Ischemia produced astrocytic shortening, cellular thickening, protoplasmic rupture expansions (clasmatodendrosis) and microglial morphological changes characteristic of various activity stages. In perifocal areas, immunoreactivity of COX-2 was increased and in the ischemic focus it was reduced, while meloxicam and atorvastatin significantly reduced (p<0.001) perifocal immunoreactivity, restoring the marking of cyclooxygenase in the ischemic focus.Conclusion: These results suggest that the meloxicam-atorvastatin association attenuates astrocytic and microglial response in the inflammatory process after cerebral ischemia by arterial embolism, reducing neurodegeneration and restoring the morphological and functional balance of nervous tissue." @default.
- W2119853314 created "2016-06-24" @default.
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- W2119853314 date "2014-04-02" @default.
- W2119853314 modified "2023-10-10" @default.
- W2119853314 title "La asociación atorvastatina-meloxicam inhibe la neuroinflamación y atenúa el daño celular en isquemia cerebral experimental por embolismo arterial" @default.
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- W2119853314 doi "https://doi.org/10.7705/biomedica.v34i3.2191" @default.
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